@anon291708 So far it was never too bad, I only noticed last week that notes took “longish”. So today I installed version …67 on two machines.
Now, it feels indeed faster but each window setup is different, so this is not scientific. The first time in a certain chapter, it takes more time to bring up the notes-window. But if I need it again in the same chapter, it comes up almost immediately, which is very nice. (We have many notes in each chapter in this phase of this project.)
So not a problem at all. And probably good news. I can join @CrazyRocky and say that PT is muchly appreciated and is a good tool to work with, even for many hours at a time.